Results 61 to 70 of about 37,389 (218)

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Análisis prospectivo de la comercialización agrícola por medio de un sistema colaborativo en red en el caribe colombiano

Revista Venezolana de Gerencia
Este artículo analiza la comercialización agrícola en Colombia desde una perspectiva prospectiva, proponiendo un modelo colaborativo en red mediado por tecnologías digitales.
Rafael Guillermo Arzuaga Mejía, Fídias Rafael Barros Montes, Rafael Humberto Barros Patiño   +2 more
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Tecnologia digital: perspectivas mundiais

Comunicação & Educação, 2003
O artigo chama a atenção do leitor para as transformações que estão em curso na sociedade contemporânea, principalmente, devido as interações com as novas tecnologias.
Lorenzo Vilches
doaj  

La imagen sometida: Ideología y contraideología de la representación visual en el cine digital y de animación latinoamericano

Aisthesis, 2012
Aunque sigue pensándose que el poder fomenta, mediante el desarrollo tecnológico, el uso de la imagen como herramienta de dominio, la evolución de las imágenes parece apuntar hacia otro lugar: la imagen sintética se ha convertido en un fin en sí misma. A
Samuel Viñolo Locuviche, Fernando Infante del Rosal   +1 more
doaj   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

The Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Repensando la riqueza e impacto del correo electrónico en la comunicación institucional desde la Teoría de la Riqueza de los Medios

Correspondencias & Análisis
En la era digital actual, el correo electrónico ha mantenido su relevancia como medio de comunicación institucional a pesar de la aparición de tecnologías más avanzadas. Este artículo revisa críticamente su papel bajo el marco de la Teoría de la Riqueza
Carla Oliva
doaj   +1 more source

AeTD: El Aula Enriquecida con Tecnología Digital

A&H, 2022
Este documento describe elementos fundamentales para el desarrollo de una visión integral de la enseñanza de las matemáticas a partir de la conjugación de tres dimensiones inherentes en la práctica docente: la normativa, la didáctica, la disciplinar, y ...
José Lorenzo Sánchez Alavez
doaj  

The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

The Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro, Hugo Bampi, João P. P. Araújo, Marina B. Soares, Gustavo R. Oliveira   +4 more
wiley   +1 more source